Conveyer carrier bar



.March 11, 1952 Q s, KUBlSlAK 2,588,984

CONVEYER CARRIER BAR Filed May 9, 1949 2 Fig 2 l0 2\0 [22 I6 32 40 34 I4 38 30 Inventor Chester 5 Kubis/a/r Patented Mar. 11, 1952 UNITED STATES PATENT OFFICE 2 Claims.

This invention relates to novel and useful im provements in conveyor carrier bars.

An object of this invention is to compensate for expansion and contraction of the conveyor operating members and tracks in the carrier bars, particularly when the carrier bars and the conveyor elements are used in connection with a high temperature zone by means of an extensible carrier bar which is attached to a pair of Sp ced conveyor members such as chains and which has a resilient seat thereon whereby the work may be supported.

Other objects and features will become apparent to those skilled in the art, in following the description of the preferred form of the invention, illustrated in accompanying drawings, wherein:

Figure 1 is a perspective view of a fragmentary portion of an endless conveyor with the improved carried bar thereon;

Figure 2 is a plan view of the structure shown in Figure 1;

Figure 3 is a sectional view taken on the line 33 of Figure 2 and in' the direction of the arrows;

Figure 4 is a transverse sectional view taken substantially on the line 4-4 of Figure 3 and in the direction of the arrows; and

Figure 5 is a sectional view taken substantially on the line 5- -5 of Figure 3 and in the direction of the arrows.

In conventional conveyor equipment which is used in high temperature regions such as in a furnace or oven, the rails and supports for the conveyor contract and expand due to the intense heat. Warping is the necessary result in the carrier bars.

In the present invention, this expansion and contraction is compensated for by means of an extensible carrier bar having improved means thereon serving asa work support. The conventional conveyor operating members, as the chains and 12, respectively, are illustrated to show the environment of the apparatus. A tube 14 is supplied with a rod l6 which may also be tubular but of a smaller outside diameter. There is an extensible ortelescoping relationship between the rod I6 and the tube 1 4.

At one end of the rod I B there is means for attachment with the chain l2. This means consists preferably of a lug I8 welded or otherwise fixed to one or more'links of the chain I2 having an opening therein. A screw 20 or other equivalent fastener is passed through this opening and also through a-n'opening in a plate 22 which is fixed to the rod 16.

At the opposite end of the carrier bar, there is a similar structure provided including a lug 2 fl -iixed to a link of the chain l0 and a plate 26 fixedjto the end of the tube M. This attaches thempposite end of the device to the chain I9.

{Substantially similar brackets 30 and 32, respectiyely, are fixed at the ends of the sleeve I4 and have the ends of the spring 34 secured thereto..-i;.'l3his spring is stretched between the brackets 30,]an'd 32, thereby forming a seat for the work which is to be conveyed. This resilent seat is allf-that is necessary for holding the articles.

ring supports 38 and 40, respectively, are fixed '=to the sleeve 14 and on the upper surface thereof. These spring supports are preferably semi-cylindrical in shape so that they embrace a portion of the spring leaving the upper part thereof exposed.

*iObviously, any number of spring supports may be 'used as found necessary or desirable from an engineering standpoint.

Itiis apparent that variations may be made without departin from the spirit of the invention.

Having described the invention, what is claimed as new is:

1'. For use with a pair of spaced conveyor chains, a carrier bar comprising a pair of longitudinal elements connected together for extensible movement with means secured to each element for fastening to said conveyor chains, a spring constituting a resilient seat supported by one of said elements, said spring being arranged parallel to said elements, and at least one spring support for said spring secured to said one of said elements. I g 2. In a conveyor for use in a high temperature zone, a carrier bar comprising a tube, a rod slidably disposed in said tube, means disposed at one end of said rod and said tube respectively for securing said tube and said rod to conveyor op- CHESTER S. KUBISIAK.

REFERENCES CITED The following references are of record in the ii l e of this patent:

UNITED STATES PATENTS Number Name Date .1,;117,311 Blair Nov. 17, 1914 1,124,168 Pope Jan. 5, 1915 1,676,481 Crummey et al July 10, 1928 1,696,900 Baily Jan. 1, 1929 2,463,650 Snyder et a1 Mar. 8, 1949 

